Onyx died in rich green colour is green onyx. Green Onyx has all the properties of Onyx. Onyx is a banded variety of chalcedony. Onyx is formed in the gas cavities of lava.
Significant Gem Localities:-
It is found in various regions of the world, Brazil, Uruguay, Pakistan, Sri Lanka, India, Hawaii and Madagascar.
Mohs scale Hardness 7
NOTE:ALL IMAGES AS A LIKE A PICTURED IMAGE....